ELECTRICAL COMPONENT LOCATOR 1990 AUDI ELECTRIC COMPONENT LOCATOR

Audi 565 1990 - BUZZERS, RELAYS & TIMERS

Audi 565 1990 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Clutch Relay	On fuse/relay panel. See Fig. 1 .
ABS Combination Relay	On auxiliary relay panel. See Fig. 2 .
Anti-Theft Relay	On fuse/relay panel. See Fig. 1 .
Automatic Seat Power Relay	Under right side of driver's seat.
Coolant Fan Relays
After-Run	Behind left kick panel. See Fig. 3 .
1st Stage	On fuse/relay panel. See Fig. 1 .
2nd Stage	On fuse/relay panel. See Fig. 1 .
3rd Stage	On auxiliary relay panel. See Fig. 2 .
Cruise Control Relay	Under dash, near cruise control unit.
Fuel Pump Relay	On fuse/relay panel. See Fig. 1 .
Horn Relay	On fuse/relay panel. See Fig. 1 .
Intensive Washer Relay	On auxiliary relay panel. See Fig. 2 .
Intermittent Wiper Relay (200)	On fuse/relay panel. See Fig. 1 .
Load Reduction Circuit Relay	On fuse/relay panel. See Fig. 1 .
Park Warning Buzzer (A/T)	Below parking brake lever.
Power Sun Roof Relay	In left front corner of sun roof.
Rear Wiper/Washer Relay	On auxiliary relay panel. See Fig. 2 .
Seat Belt Warning Buzzer	Under left side of dash.
Seat Heater Relays (2)	On auxiliary relay panel. See Fig. 2 .
Turbo Coolant Pump Cont. Relay (200)	Behind left kick panel.
Turn Signal/Hazard Flasher	Behind right side of instrument cluster. See Fig. 4 .

Audi 565 1990 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Auxiliary Relay Panel	Under dash, to left of steering column. See Fig. 2 .
Power Window & Sun Roof Circuit Breaker	On auxiliary relay panel. See Fig. 2 .
Fuse/Relay Panel	On left side of engine compartment. See Fig. 1 .

Audi 565 1990 CONTROL UNITS LOCATION

Component	Location
A/C Blower Control Unit	On right side of A/C evaporator housing.
A/C Control Unit	In center of dash.
A/C Climate Control Programmer	Behind glove box. See Fig. 4 .
ABS Control Unit	Under left rear passenger's seat.
Alarm System Control Unit	Under right side of dash. See Fig. 4 .
Automatic Seat Control Unit	Under driver's seat.
Cruise Control Unit	Under right side of dash. See Fig. 4 .
Engine Control Unit (200)	Behind right kick panel. See Fig. 4 .
Fuel Injection Control Unit (100)	Behind right kick panel. See Fig. 4 .
Idle Stabilizer & Fuel Deceleration Control Unit (200)	Behind left kick panel. See Fig. 4 .
Ignition Control Unit (100)	Behind left kick panel. See Fig. 4 .
Interior Light Delay Control Unit	On auxiliary relay panel. See Fig. 2 .
Light Control Unit (Front)	On auxiliary relay panel. See Fig. 2 .
Power Window/Sun Roof Control Units (2)	On auxiliary relay panel. See Fig. 2 .
Rear Differential Lock Control Unit	Under center of rear seat.
Seat Belt/Park Light/Radio Warning Control Unit	On auxiliary relay panel. See Fig. 2 .
Taillight Control Unit	On left side of trunk, near antenna.

Audi 565 1990 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Ambient Temperature Sensor	Near hood latch, and in evaporator plenum.
A/C In-Car Temperature	On top center of dash, and next to dome light. See Fig. 4 .
ABS Speed Sensors	On each wheel.
Altitude Sensor (100)	Under dash, near passenger's kick panel. See Fig. 4 .
Brake Pad Wear Sensor	On each inboard brake pad.
Coolant Temperature Sending Unit	In coolant hose housing, at front of cylinder head.
Cruise Control Speed Sensor	On back of speedometer.
Engine RPM Sensor	On left side of transmission bellhousing.
Fuel Gauge Sending Unit	On top of fuel tank, under trunk floor.
Hall Sender	In distributor.
Intake Air Temperature Sensor (Turbo)	In intercooler outlet.
Knock Sensors
Non-Turbo	On left side of block, near No. 3 cylinder.
Turbo (2)	On left side of block, near No. 1 cylinder.
Low Brake Fluid Sensor	In master cylinder reservoir cap.
Oxygen Sensor	In exhaust header pipe, below flange.
Pressure Sensor	On engine control unit.
TDC Reference Sensor	On left side of transmission bellhousing.

Audi 565 1990 MOTORS LOCATION

Component	Location
A/C Temperature Regulation Servo	Above transmission tunnel in footwell.
A/C Temperature Sensor Fan Motor	Next to dash A/C temperature sensor.
Cruise Control Vacuum Pump Motor	In tray, left of A/C evaporator housing.
Electric Fuel Pump Motor	Under right side of vehicle, near fuel tank.
Wiper Motor	In firewall tray, on left side.

Audi 565 1990 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Charcoal Canister Shut-Off Valve	On top of charcoal canister.
Cold Start Solenoid	In rear of intake manifold.
Deceleration Fuel Cut-Off Valve	In air cleaner housing.
Idle Stabilization Valve	In air by-pass hose.
Oxygen Sensor Frequency Valve	In left front fender cavity.
Wastegate Frequency Valve	Beside ignition coil.
Wastegate Solenoid	Next to distributor.

Audi 565 1990 SWITCHES LOCATION

Component	Location
A/C Low Pressure Switch	In A/C low pressure line, between evaporator and accumulator.
A/C High Pressure Switch	In A/C high pressure line.
A/C Kickdown Switch (A/T)	Under accelerator pedal.
Back-Up Light Switch (A/T)	On gearshift selector bracket.
Back-Up Light Switch (M/T)	On right side of gearshift housing.
Brake/Stoplight Switch	On bracket, at top of brake pedal.
Cruise Control Brake Vent Switch	On bracket, at top of brake pedal.
Cruise Control Clutch Vent Switch	On bracket, at top of clutch pedal.
Idle Stoplight Switch	On bracket, at top of brake pedal.
Cruise Control Brake Vent Switch	On bracket, at top of brake pedal.
Cruise Control Clutch Vent Switch	On bracket, at top of clutch pedal.
Idle Switch	On throttle body.
Longitudinal Acceleration Switch (ABS)	Under rear seat.
Neutral Start Switch	On gearshift selector bracket.
Oil Pressure Switch	On side of engine block, next to oil dipstick.
Oxygen Sensor Reset Switch
Non-Turbo	On rear of instrument cluster, below warning light.
Turbo	Under rear seat.
Oxygen Sensor Thermoswitch	In heater by-pass hose, below ignition coil.
Parking Brake Switch	Below parking brake lever.
Pressure Gradient Switch	To right of ignition coil.
Thermoswitches
Cold Start Injector	On rear of cylinder head.
Coolant Fan	In lower right side of radiator.
Coolant Fan Hi-Speed	Below coolant expansion tank.
Coolant Temperature Warning	On rear of cylinder head.
Injector Cooling	On turbo heat shield.
Secondary Coolant Pump	On turbo coolant line.
Wide Open Throttle (WOT) Switch	On throttle body.

Audi 565 1990 MISCELLANEOUS LOCATION

Component	Location
Antenna Amplifier	In trunk, below trunk latch.
Blower Motor Resistors	In left half of heater housing.
Diagnostic Connectors	Under left edge of dash, just above pedals.
Oxygen Sensor Mileage Counter	Under left side of dash, against firewall.
Power Stage Module (Turbo)	To left of ignition coil.
Rear Speaker Amplifiers (Wagon)	Under rear seat.